As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIV - ALL LAVS STOPPED FLUSHING IN FLIGHT. FL 360 2 HOURS INTO THE FLIGHT. ATTEMPTED RESET OF VACUUM SYSTEM VIA A5 CB ON AFT GALLEY OVHD PANEL PER MAINT DIRECTION WITHOUT SUCCESS. FOUND EXCESSIVE BUILD UP OF WASTE ON DIVERTER, FLUID LEVEL SENSOR, AND WASTE TRANSMITTER. REMOVED/WASHED OUT BUILD UP FROM WASTE TANK. OPS CHECK GOOD. NO DEFECTS NOTED. OK FOR SVC.